Which food processing attachment is better for an Oster blender?
 

Hi, I'm being cheap and don't want to purchase another food processor,
however, I have an Oster blender that works wonderfully....I found 2
food processor attachments for the blender, and don't know which to
choose:

OS-4861
3 cup capacity
can grind/chop/mix light dough
looks more like a blender jar

OS-4846
1 cup capacity
can grind / chop small qty of food (such as onions, eggs, meat)
looks more like a food processor bowl

I am planning on using the attachment to chop vegetables (not a lot, 1
cup should be fine). But I bake also, so the mixing light dough
appeals to me as well. I was wondering if anyone has used any of these
attachments and do you have any comments about them?

Thanks so much! I'm also definitely getting the small glass jars
because I make baby food for my son.

-Shirley